company:lawrence berkeley national laboratory

CppCon Preview with Bryce Adelstein Lelbach
▻http://cppcast.libsyn.com/cppcon-preview-with-bryce-adelstein-lelbach

Rob and Jason are joined by Bryce Adelstein Lelbach to discuss his work on the upcoming CppCon conference, his thoughts on the graphics proposal and more. Bryce Adelstein Lelbach is a software engineer on the CUDA driver team at NVIDIA. Bryce is passionate about parallel programming. He maintains Thrust, the CUDA C++ core library. He is also one of the initial developers of the HPX C++ runtime system. He spent five years working on HPX while he was at Louisiana State University’s Center for ComCppputation and Technology, and three years at Lawrence Berkeley National Laboratory (a US Department of Energy research facility) developing and analyzing new parallel programming models for exascale and post-Moore architectures. He also helped start the LLVMLinux initiative, and has (...)

▻http://traffic.libsyn.com/cppcast/cppcast-168.mp3?dest-id=282890

Why Chinese cities are different - Geographical

▻http://geographical.co.uk/places/cities/item/1431-why-chinese-cities-are-different

http://geographical.co.uk/media/k2/items/cache/bab3071b5f24a146af315fe2e7519640_S.jpg

hongqing, China, one of eight low-carbon pilot cities Sean Pavone
08 Dec
2015
Urban design and sustainable infrastructure will play a huge role in building a low-carbon global economy. But cities in one key player – China – have some significant differences to the rest of the world

Since becoming the world’s largest greenhouse gas emitter in 2007, China now contributes nearly 20 per cent of global emissions. While 58 per cent of China’s energy-related CO2 emissions are currently derived from cities, in the coming decades this figure is likely to climb closer to the 70 per cent global average, according to a report, issued by the China Energy Group of Lawrence Berkeley National Laboratory and Stockholm Environment Institute with the support of Bloomberg Philanthropies. Therefore, as Lynn Price, Senior Staff Scientist and Group Leader at China Energy Group, Lawrence Berkeley National Laboratory puts it: ‘The importance of cities in China cannot be understated’.

#chine #urban_matter

Study Finds 8 Fracking Chemicals Toxic to Humans | EcoWatch
▻http://ecowatch.com/2014/08/19/fracking-chemicals-toxic-to-humans
S’il en reste à convaincre que la #fracturation_hydraulique c’est de la merde

Environmental engineer William Stringfellow and colleagues at Lawrence Berkeley National Laboratory and the University of the Pacific told the American Chemical Society meeting in San Francisco that they scoured databases and reports to compile a list of the chemicals commonly used in fracking.

But the researchers assembled a list of 190 of them, and considered their properties. For around one-third of them, there was very little data about health risks, and eight of them were toxic to mammals.

Fracking is a highly controversial technique, and has not been handed a clean bill of health by the scientific societies.

Seismologists have warned that such operations could possibly trigger earthquakes, and endocrinologists have warned that some of the chemicals used are known hormone-disruptors, and likely therefore to represent a health hazard if they get into well water.

Combien consomme un site Web ?
Sustainable Web Design · An A List Apart Article
▻http://alistapart.com/article/sustainable-web-design

What is the web’s carbon footprint?

– A 2008 paper from the Lawrence Berkeley National Laboratory suggests it takes 13kWh to transmit 1GB.
– 15.6 pounds of CO2e—and that’s just to transfer 1GB of data.
– If one million users each download a typical page, which now averages 1.4MB, that’s a total of (...) more than 10 tons of CO2e.
– Mobile data, with its reliance on 3G/4G, is up to five times more polluting—77 pounds CO2 per gigabyte.
(...)
Based on these figures, we can estimate that a site the size of Tumblr, with 183 million pageviews per day and approximately 10 percent of those from mobile, has the potential to be responsible for a staggering 2,600 tons of CO2 daily.

#énergie #simplifier #alléger